Valve device



Oct. 11, 1932.

c. l.. HARRINGTON 1,881,538

VALVE DEVICE Filed May ll, 1928 3% WWW/MM Patented Oct. 11', 1932 i UNITED STATES- CLAUDE L. HAEEINGEON, oF DETROIT, MICHIGAN-Assisivon x'ro WHITE STAR REFIN- ING COMPANY, E DETROIT, ivironienmaconronarron or DELAWARE VALVE .i Application filed May :11,

f 'This invention relates to a valve device and more particularly to a construction thereof tending to simplify, render vmore efticientand improvethe same generally.

The device relates particularly to a back- Q flow check valve nding particular utility in connection with measuring pumps, such as now generally employed for dispensing gasoline and the like.

The device has as one of itsv primary objects to provide a simple and ecient con- Y. struction which may be quickly and economl l device;

Figure 2 is an enlarged verticalsectional elevational view of my improved valveA device, showing the parts thereof in one position; and v f Figure V3 isa similar view showing the parts in another position.

Referring now to the drawing and more especially to Figure 1, it will be noted that there-is illustrated generally a gasoline dispensing pump 10 having a suction or supply linellextending to and within a gasoline tank 12.V The end of the supply or suction line'11 is" adapted to be connected to my imv proved valve device indicated generally byy Ythe reference character 13.

By reference to Figures 2 and 3 it will be -noted that the valve device consists essentially ofy a sleeve-like housing 14: having an upper interiorly threaded portion adapted for threaded engagement with the lower end 4of the suction line 11. The lower end of the Vhousing r14; is internally threaded for engagement with the externally threaded portion of a nipple 15. The other .or lower end of the nipple 15 is lexternally threaded for engagement with an internally threaded ring 16 of a strainer 17. The upper end of the nEvicE 1928. 1strati' nt. I276,874. I

nipple 15fis ralso internally threaded for en-l .A

, with ene orinore outlet ports 19. The outer surface 20 'of themember 18 is'preferably: accurately machined or finished so as topro-V vide for a close engagement or sliding fit between thissurface and the'innersurface21 cfa cap-like valve member 22 adapted for sliding telescopic engagementwith` the niember 18. The'lowcr edge of the valve member 22 is bevelled or inclined as'indicated` at23 for engagement with a similarly shaped shoulder 24 formed on the member 18, When the surface 23 of the valve member 22 engagesshoulder 2lifurther downward 'movement of valve member 22 is prevented and the engagement of these surfaces 23-24 is fsuch as to prevent the escape of liquid therebetween. closed with the exception of an aperture 25 l'which prevents the formation of a vacuum between the upper end of member 18 and valve member 22as the latter is raised to uncover outlet ports 19.

` Arranged in the upper end of housing 14: is a yoke or other supporting means 26 provided witha threaded aperture for engage- The upper end of member 18 "is l?? ment by a set screw 27.V This set screw acts v as an adjustable abutment for limiting the upward movement of valve member 22 as will be obvious. The upward movement of valvemember 22 is caused by the suction in suction line 11 whereas when this suction is interrupted valve member 22 will seat by gravity and thus cover ports 19.

A device of this character finds particular utility in connection with measuring pumps used for instance in dispensing gasoline, be-

cause with suoli a construction the suction line 11 may be maintained full of liquid as the valve 22 prevents this liquid from draining back into the tank 12 when suction on the suction line 11 is interrupted. This insures rapid and accurate measurement of the liquid vbeing dispensed.

v Obviously the herein described construction lends itself to rapid and economical production and easy assembly. Should any of the parts become broken or worn the device ico ' may be readily disassembled and ynevv parts substituted for thebroken or Worn ones. The construction of the valve is such that a double Check is provided in that the flow of the liquid through the outlet ports 19 is first interrupted when cap-like valve memberv 22 e covers ports'l9 and is further checkedfwhen lvalve surface 23 engages valve surface 24.

Obvious changes Will suggest themselves lo to;` those skilled'in Athis art and to` this end reservation is made to make such changes as; may come Withinthe purview of the accom-A panying Claim; v f V*What I claim as my invention is: v v. Inv af device ofthe class deseribe'dgfa Casing provided With an open end, a member ar- ,.V l ranged Within said'casi/ng and provided with afpot, a second member telescopically en` g vging'saidl first-mentioned member' and. op'- eable to control the ovv of fluid through said por't, .,and means arranged entirely 'with-Y v"in ysaid vcasing for limiting the opening of the valve yincludingV a member threadedly engaging the inner-'WallY of said casingV and an ad- ;5 l justable stop carried by saidmember and enil' ggeable Withv said second member.

c. Iiitesimony whereof I afX my signature f Y' L'. HARRINGTON. 

